MAGNETIC PROPRIETY DETECTION DEVICE Russian patent published in 2017 - IPC G01N27/72 

FIELD: materials.

SUBSTANCE: invention can be used for contained in sheet of paper magnetic material magnetic properties detection. Summary of invention is, that device comprises magnetic module, which generates magnetic field perpendicular to paper sheet transportation direction on transportation path and paper sheet transportation parallel surfaces, where magnetic field intensity decreases according to paper sheet transportation in transportation direction, and after achieving 0 (zero) magnetic field intensity increases, wherein magnetic field direction is opposite direction; and plurality of magnetic sensors, located in magnetic field, generated by magnetic module in places, in which magnetic field intensity mutually differs and which detect paper sheet magnetic properties, transported along transportation path, wherein magnetic material magnetic properties, contained in sheet of paper, are detected based on said plurality of magnetic sensors output signals, obtained at magnetic material detection.

EFFECT: technical result is enabling possibility of magnetic property detecting device creation with small dimensions, made with possibility of multiple types of magnetic materials with different value of coercitive force differentiation and detection.

14 cl, 28 dwg